Visibility issue with iPhoneEdit

- There seems to be a shortcoming in the IWRegion control where the particular HTML element that is used for the IWiPhoneEdit is not hidden when the region is hidden.
As a workaround you can toggle the visible property of the IWiPhoneEdit instead of the IWRegion property.

- Please note that the current version of the IWiPhoneEdit does not support changing visibility asynchronously.
However, support to toggle the visible property of the IWiPhoneEdit asynchronously has now been added.
The update will be available with the next release of the TMS IW iPhone controls pack.